João Pina’s photographs of Rio de Janeiro show how life remained a struggle for many residents during Brazil’s boom years. His book’s title? “46570,” a reference to the number of murders in the city in the decade leading up to the 2016 Olympic Games.

A collection of images showcases the intensity of the Gold Rush in the 19th century, around the same time the daguerreotype enjoyed a similar surge in popularity. Some of the images evoke a certain Brooklyn demographic.